Hello,

> Perhaps you should look into bayesian spam filtering, like ASSP. I found 
> it to be very effective.

I found it to be very ineffective especially with image spam and also to 
cause a lot of false positives.

> A spamfilter will always be high maintenance, 
> if you want it to be effective (for example you want to keep teaching a 
> bayesian filter). I believe the quality of a spamfilter depends greatly 
> on the quality of the admin working with it.

I don't want to pay a sysadmin a train a spam filter. I want an antispam 
solution, that is good out-of-the-box and is trained by someone else 
(e.g. honeypots of the vendor). We are managing about 40.000 email 
addresses and currently > 1.000.000 messages daily (whereas >93% is 
spam). Thats nothing, that can be trained manually any more.

Regards
Marten

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